64 NILS ODHNER, NORTHERN AND ARCTIC INVERTEBRATES. V. PROSOBRANCHIA. 1 DIOTOCARDIA. 
1873) 1 sh., h. 20.5 (striata). — Lomme Bay, 5—15 fms, alge, stones, clay (''/, 1868) 
2 sps, max. h. 15.6 (striata), D:o, 25—35 fms, clay, stones ("/» 1868) 3 sps, max. h. 
18.3 (striata). — Lovén's Mount, 36 ims, clay with stones ("/+ 1868) 3 sps max. h. 
6.3; d. 7.5; wh. 5 (typica), — Hinlopen Strait, 10-—25 fms, stones, clay (1861) 7 sps, 
max. h. 18 (var. striata); D:o 15—20 fms, clay with stones (1861) 2 sps, max. h. 
16 (striata). Shoal Point, 20—30 fms, clay (1861) 3 sps, max. h. 20 (striata). — 
Castrén's Islands, 30—40 fms, clay, stones, 1 sp., h. 7.4 (striata). — Parry Island 
(1868): 2 sps, max. h BT; apa 35 kd: bss wide (CYP eR) 
Spitzbergen, East coast: King Charles Land, Swedish Foreland, 12—20 m, fine 
blackish gray clay (5/s 1898) 2 sps, max. h. 17; d. 19 (striata); D:o, Bremer Sound, 
100—110 m, fine clay with big stones, Biloculina sparse; bottom temp. — 1.45? (/s 
1898) 9 sps, max. h. 14.4; ap. 7; d. 14.2; wh. 6 (striata: many fine umbilical cords; 
angular keel feeble; 10 spiral keels on the whorls; sutures deep). — Walter Thymen 
Strait, the mouth, 30—40 fms (1864) 1 sp., h. 20; ap. 11; d. 20; wh. 6/2 (striata). 
—- Stor Fiord, 5—10 fms, clay ('”/e& 1864) 10 sps; max. h. 19 (striata); D:o, 4—7 
fms, fine clay ("”/s 1864) 3 sps, max. h. 10; ap. 4.5; d. 9.1; wh. 6 (typieal; with an 
angular keel and 1 coarser spiral ridge). — Whalers Point, 20—30 fms, elay (/; 
1864) 5 sps, max. h. 17; ap. 9; d. 19; wh. 6 (umbilicus wide without surrounding 
keel; no angular keel; striata). | 
Iceland (ODHNER 1910). Measurements: Berufjord, forma typica, max. h. 12.3; 
ap. 95.5; d. 11.1; wh. 7 (spiral ribs 8, of which 2 stronger; angular keel feeble; um- 
bilical keel strong; base convex, with strong cords; Fig. 33). — Hofsås, h. 12; ap. 
5.6; d. 11.2; wh. 6'/2 (10 ribs; base convex with dense feeble cords; no angular or 
umibilieal keel). = Bjarnanes; Jr, 12:25 ap. Ts di! 13:e wh: 54 (ribstö6lötkwhichta 
somewhat stronger; no angular keel; umbilical keel rather feeble; base flat, nearly 
smooth). -— Berufjord, var. striata, h. 20; ap. 10; d. 21.38; wh. 6 ”/s, no angular and 
a feeble umbilical keel; spiral keels 4, of equal strength (fig. 35). 
West Greenland (PossELT & JENSEN 1899). Further: Cape Dudley Digges, 30 
—40 m, mud (E. Nilson "/ 1894) 1 young sp., h. 2.5 (type). — 72? 8 N., 74” 28 W., 
30—80 m, hard mud (E. Nilson /9 1894) 3 sps, max. h. 15; ap. 7.2; d. 14.7; wh. 
64 (striata; no trace of the umbilical keel; umbilicus wide and surrounded by many 
fine cords; spiral sculpture disappearing on the last whorl). — Measurements: Omenak, 
h. 8.2; ap. 3.8; d. 8.3, wh. 5'/2 (grandis). — Pröven, h. 14; ap. 7; d. 15; wh. 6/4 (forma 
multilirata): 14 fine and dense ridges on the whorls, on the upper ones 2 primary 
ridges; no angular nor umbilical keels (grandis), Fig. 30—34. Godthaab, h. 11.5; 
ap. 5; d. 10.5; wh. 674 (forma typica): 3—6 (7) strong spiral keels on the whorls; 
base smooth or strongly sculptured; angular keel strong; umbilical keel distinct or 
sometimes replaced by a few feebler ones, Fig. 28. Godhkavn; hall2;fap 065cdi 
II:s OS: 20: 
East Greenland (HäcGG 1905), Mackenzie Bay, max. h. 21; ap. 11.2; d. 21.5; 
wh. 7 (striata). — Pendulum Islands, 2 sps, var. grandis, the one sp. with stronger 
and unequal spiral keels and feeble angular and umbilical ones, the other sp. with 
feebler spiral keels and no umbilieal nor angular ones. Scoresby Sound, Harry's 
